UPDATING revision 192470
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh 4<imp@village.org>. See end of file for further details. For commonly 5done items, please see the COMMON ITEMS: section later in the file. 6 7Items affecting the ports and packages system can be found in 8/usr/ports/UPDATING. Please read that file before running 9portupgrade. 10 11NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 12 FreeBSD 8.x has many debugging features turned on, in 13 both the kernel and userland. These features attempt to detect 14 incorrect use of system primitives, and encourage loud failure 15 through extra sanity checking and fail stop semantics. They 16 also substantially impact system performance. If you want to 17 do performance measurement, benchmarking, and optimization, 18 you'll want to turn them off. This includes various WITNESS- 19 related kernel options, INVARIANTS, malloc debugging flags 20 in userland, and various verbose features in the kernel. Many 21 developers choose to disable these features on build machines 22 to maximize performance. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520090520: 26 802.11 monitor mode support was revised and driver api's 27 were changed. Drivers dependent on net80211 now support 28 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 29 user-visible data structures were changed but applications 30 that use DLT_IEEE802_11 may require changes. 31 Bump __FreeBSD_version to 800088. 32 3320090430: 34 The layout of the following structs has changed: sysctl_oid, 35 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 36 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 37 panics may be experienced. World rebuild is required for 38 correctly checking networking state from userland. 39 Bump __FreeBSD_version to 800085. 40 4120090429: 42 MLDv2 and Source-Specific Multicast (SSM) have been merged 43 to the IPv6 stack. VIMAGE hooks are in but not yet used. 44 The implementation of SSM within FreeBSD's IPv6 stack closely 45 follows the IPv4 implementation. 46 47 For kernel developers: 48 49 * The most important changes are that the ip6_output() and 50 ip6_input() paths no longer take the IN6_MULTI_LOCK, 51 and this lock has been downgraded to a non-recursive mutex. 52 53 * As with the changes to the IPv4 stack to support SSM, filtering 54 of inbound multicast traffic must now be performed by transport 55 protocols within the IPv6 stack. This does not apply to TCP and 56 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 57 58 * The KPIs used by IPv6 multicast are similar to those used by 59 the IPv4 stack, with the following differences: 60 * im6o_mc_filter() is analogous to imo_multicast_filter(). 61 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 62 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 63 * IN6_LOOKUP_MULTI() has been deprecated and removed. 64 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 65 for MLDv1 have an additional 'timer' argument which is used to 66 jitter the initial membership report for the solicited-node 67 multicast membership on-link. 68 * This is not strictly needed for MLDv2, which already jitters 69 its report transmissions. However, the 'timer' argument is 70 preserved in case MLDv1 is active on the interface. 71 72 * The KAME linked-list based IPv6 membership implementation has 73 been refactored to use a vector similar to that used by the IPv4 74 stack. 75 Code which maintains a list of its own multicast memberships 76 internally, e.g. carp, has been updated to reflect the new 77 semantics. 78 79 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 80 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 81 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 82 implementation constraint which needs to be addressed in HEAD. 83 84 For application developers: 85 86 * The changes are broadly similar to those made for the IPv4 87 stack. 88 89 * The use of IPv4 and IPv6 multicast socket options on the same 90 socket, using mapped addresses, HAS NOT been tested or supported. 91 92 * There are a number of issues with the implementation of various 93 IPv6 multicast APIs which need to be resolved in the API surface 94 before the implementation is fully compatible with KAME userland 95 use, and these are mostly to do with interface index treatment. 96 97 * The literature available discusses the use of either the delta / ASM 98 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 99 using setsourcefilter(3)/getsourcefilter(3). For more information 100 please refer to RFC 3768, 'Socket Interface Extensions for 101 Multicast Source Filters'. 102 103 * Applications which use the published RFC 3678 APIs should be fine. 104 105 For systems administrators: 106 107 * The mtest(8) utility has been refactored to support IPv6, in 108 addition to IPv4. Interface addresses are no longer accepted 109 as arguments, their names must be used instead. The utility 110 will map the interface name to its first IPv4 address as 111 returned by getifaddrs(3). 112 113 * The ifmcstat(8) utility has also been updated to print the MLDv2 114 endpoint state and source filter lists via sysctl(3). 115 116 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 117 loopback of IPv6 multicast datagrams by default; it defaults to 1 118 to preserve the existing behaviour. Disabling multicast loopback is 119 recommended for optimal system performance. 120 121 * The IPv6 MROUTING code has been changed to examine this sysctl 122 instead of attempting to perform a group lookup before looping 123 back forwarded datagrams. 124 125 Bump __FreeBSD_version to 800084. 126 12720090422: 128 Implement low-level Bluetooth HCI API. 129 Bump __FreeBSD_version to 800083. 130 13120090419: 132 The layout of struct malloc_type, used by modules to register new 133 memory allocation types, has changed. Most modules will need to 134 be rebuilt or panics may be experienced. 135 Bump __FreeBSD_version to 800081. 136 13720090415: 138 Anticipate overflowing inp_flags - add inp_flags2. 139 This changes most offsets in inpcb, so checking v4 connection 140 state will require a world rebuild. 141 Bump __FreeBSD_version to 800080. 142 14320090415: 144 Add an llentry to struct route and struct route_in6. Modules 145 embedding a struct route will need to be recompiled. 146 Bump __FreeBSD_version to 800079. 147 14820090414: 149 The size of rt_metrics_lite and by extension rtentry has changed. 150 Networking administration apps will need to be recompiled. 151 The route command now supports show as an alias for get, weighting 152 of routes, sticky and nostick flags to alter the behavior of stateful 153 load balancing. 154 Bump __FreeBSD_version to 800078. 155 15620090408: 157 Do not use Giant for kbdmux(4) locking. This is wrong and 158 apparently causing more problems than it solves. This will 159 re-open the issue where interrupt handlers may race with 160 kbdmux(4) in polling mode. Typical symptoms include (but 161 not limited to) duplicated and/or missing characters when 162 low level console functions (such as gets) are used while 163 interrupts are enabled (for example geli password prompt, 164 mountroot prompt etc.). Disabling kbdmux(4) may help. 165 16620090407: 167 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 168 kernel modules referencing any of the above need to be recompiled. 169 Bump __FreeBSD_version to 800075. 170 17120090320: 172 GEOM_PART has become the default partition slicer for storage devices, 173 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 174 introduces some changes: 175 176 MSDOS/EBR: the devices created from MSDOS extended partition entries 177 (EBR) can be named differently than with GEOM_MBR and are now symlinks 178 to devices with offset-based names. fstabs may need to be modified. 179 180 BSD: the "geometry does not match label" warning is harmless in most 181 cases but it points to problems in file system misalignment with 182 disk geometry. The "c" partition is now implicit, covers the whole 183 top-level drive and cannot be (mis)used by users. 184 185 General: Kernel dumps are now not allowed to be written to devices 186 whose partition types indicate they are meant to be used for file 187 systems (or, in case of MSDOS partitions, as something else than 188 the "386BSD" type). 189 190 Most of these changes date approximately from 200812. 191 19220090319: 193 The uscanner(4) driver has been removed from the kernel. This follows 194 Linux removing theirs in 2.6 and making libusb the default interface 195 (supported by sane). 196 19720090319: 198 The multicast forwarding code has been cleaned up. netstat(1) 199 only relies on KVM now for printing bandwidth upcall meters. 200 The IPv4 and IPv6 modules are split into ip_mroute_mod and 201 ip6_mroute_mod respectively. The config(5) options for statically 202 compiling this code remain the same, i.e. 'options MROUTING'. 203 20420090315: 205 Support for the IFF_NEEDSGIANT network interface flag has been 206 removed, which means that non-MPSAFE network device drivers are no 207 longer supported. In particular, if_ar, if_sr, and network device 208 drivers from the old (legacy) USB stack can no longer be built or 209 used. 210 21120090313: 212 POSIX.1 Native Language Support (NLS) has been enabled in libc and 213 a bunch of new language catalog files have also been added. 214 This means that some common libc messages are now localized and 215 they depend on the LC_MESSAGES environmental variable. 216 21720090313: 218 The k8temp(4) driver has been renamed to amdtemp(4) since 219 support for K10 and K11 CPU families was added. 220 22120090309: 222 IGMPv3 and Source-Specific Multicast (SSM) have been merged 223 to the IPv4 stack. VIMAGE hooks are in but not yet used. 224 225 For kernel developers, the most important changes are that the 226 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 227 and this lock has been downgraded to a non-recursive mutex. 228 229 Transport protocols (UDP, Raw IP) are now responsible for filtering 230 inbound multicast traffic according to group membership and source 231 filters. The imo_multicast_filter() KPI exists for this purpose. 232 Transports which do not use multicast (SCTP, TCP) already reject 233 multicast by default. Forwarding and receive performance may improve 234 as a mutex acquisition is no longer needed in the ip_input() 235 low-level input path. in_addmulti() and in_delmulti() are shimmed 236 to new KPIs which exist to support SSM in-kernel. 237 238 For application developers, it is recommended that loopback of 239 multicast datagrams be disabled for best performance, as this 240 will still cause the lock to be taken for each looped-back 241 datagram transmission. The net.inet.ip.mcast.loop sysctl may 242 be tuned to 0 to disable loopback by default; it defaults to 1 243 to preserve the existing behaviour. 244 245 For systems administrators, to obtain best performance with 246 multicast reception and multiple groups, it is always recommended 247 that a card with a suitably precise hash filter is used. Hash 248 collisions will still result in the lock being taken within the 249 transport protocol input path to check group membership. 250 251 If deploying FreeBSD in an environment with IGMP snooping switches, 252 it is recommended that the net.inet.igmp.sendlocal sysctl remain 253 enabled; this forces 224.0.0.0/24 group membership to be announced 254 via IGMP. 255 256 The size of 'struct igmpstat' has changed; netstat needs to be 257 recompiled to reflect this. 258 Bump __FreeBSD_version to 800070. 259 26020090309: 261 libusb20.so.1 is now installed as libusb.so.1 and the ports system 262 updated to use it. This requires a buildworld/installworld in order to 263 update the library and dependencies (usbconfig, etc). Its advisable to 264 rebuild all ports which uses libusb. More specific directions are given 265 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 266 libusb are no longer required and can be removed. 267 26820090302: 269 A workaround is committed to allow the creation of System V shared 270 memory segment of size > 2 GB on the 64-bit architectures. 271 Due to a limitation of the existing ABI, the shm_segsz member 272 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 273 wrong for large segments. Note that limits must be explicitely 274 raised to allow such segments to be created. 275 27620090301: 277 The layout of struct ifnet has changed, requiring a rebuild of all 278 network device driver modules. 279 28020090227: 281 The /dev handling for the new USB stack has changed, a 282 buildworld/installworld is required for libusb20. 283 28420090223: 285 The new USB2 stack has now been permanently moved in and all kernel and 286 module names reverted to their previous values (eg, usb, ehci, ohci, 287 ums, ...). The old usb stack can be compiled in by prefixing the name 288 with the letter 'o', the old usb modules have been removed. 289 Updating entry 20090216 for xorg and 20090215 for libmap may still 290 apply. 291 29220090217: 293 The rc.conf(5) option if_up_delay has been renamed to 294 defaultroute_delay to better reflect its purpose. If you have 295 customized this setting in /etc/rc.conf you need to update it to 296 use the new name. 297 29820090216: 299 xorg 7.4 wants to configure its input devices via hald which does not 300 yet work with USB2. If the keyboard/mouse does not work in xorg then 301 add 302 Option "AllowEmptyInput" "off" 303 to your ServerLayout section. This will cause X to use the configured 304 kbd and mouse sections from your xorg.conf. 305 30620090215: 307 The GENERIC kernels for all architectures now default to the new USB2 308 stack. No kernel config options or code have been removed so if a 309 problem arises please report it and optionally revert to the old USB 310 stack. If you are loading USB kernel modules or have a custom kernel 311 that includes GENERIC then ensure that usb names are also changed over, 312 eg uftdi -> usb2_serial_ftdi. 313 314 Older programs linked against the ports libusb 0.1 need to be 315 redirected to the new stack's libusb20. /etc/libmap.conf can 316 be used for this: 317 # Map old usb library to new one for usb2 stack 318 libusb-0.1.so.8 libusb20.so.1 319 32020090203: 321 The ichsmb(4) driver has been changed to require SMBus slave 322 addresses be left-justified (xxxxxxx0b) rather than right-justified. 323 All of the other SMBus controller drivers require left-justified 324 slave addresses, so this change makes all the drivers provide the 325 same interface. 326 32720090201: 328 INET6 statistics (struct ip6stat) was updated. 329 netstat(1) needs to be recompiled. 330 33120090119: 332 NTFS has been removed from GENERIC kernel on amd64 to match 333 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 334 will load ntfs.ko module automatically when NTFS support is 335 actually needed, unless ntfs.ko is not installed or security 336 level prohibits loading kernel modules. If either is the case, 337 "options NTFS" has to be added into kernel config. 338 33920090115: 340 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 341 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 342 800061. User space tools that rely on the size of struct tcpcb in 343 tcp_var.h (e.g. sockstat) need to be recompiled. 344 34520081225: 346 ng_tty(4) module updated to match the new TTY subsystem. 347 Due to API change, user-level applications must be updated. 348 New API support added to mpd5 CVS and expected to be present 349 in next mpd5.3 release. 350 35120081219: 352 With __FreeBSD_version 800060 the makefs tool is part of 353 the base system (it was a port). 354 35520081216: 356 The afdata and ifnet locks have been changed from mutexes to 357 rwlocks, network modules will need to be re-compiled. 358 35920081214: 360 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 361 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 362 The new code reduced struct rtentry{} by 16 bytes on 32-bit 363 architecture and 40 bytes on 64-bit architecture. The userland 364 applications "arp" and "ndp" have been updated accordingly. 365 The output from "netstat -r" shows only routing entries and 366 none of the L2 information. 367 36820081130: 369 __FreeBSD_version 800057 marks the switchover from the 370 binary ath hal to source code. Users must add the line: 371 372 options AH_SUPPORT_AR5416 373 374 to their kernel config files when specifying: 375 376 device ath_hal 377 378 The ath_hal module no longer exists; the code is now compiled 379 together with the driver in the ath module. It is now 380 possible to tailor chip support (i.e. reduce the set of chips 381 and thereby the code size); consult ath_hal(4) for details. 382 38320081121: 384 __FreeBSD_version 800054 adds memory barriers to 385 <machine/atomic.h>, new interfaces to ifnet to facilitate 386 multiple hardware transmit queues for cards that support 387 them, and a lock-less ring-buffer implementation to 388 enable drivers to more efficiently manage queueing of 389 packets. 390 39120081117: 392 A new version of ZFS (version 13) has been merged to -HEAD. 393 This version has zpool attribute "listsnapshots" off by 394 default, which means "zfs list" does not show snapshots, 395 and is the same as Solaris behavior. 396 39720081028: 398 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 399 40020081009: 401 The uhci, ohci, ehci and slhci USB Host controller drivers have 402 been put into separate modules. If you load the usb module 403 separately through loader.conf you will need to load the 404 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 405 controller add the following to loader.conf: 406 407 uhci_load="YES" 408 ehci_load="YES" 409 41020081009: 411 The ABI used by the PMC toolset has changed. Please keep 412 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 413 sync. 414 41520080820: 416 The TTY subsystem of the kernel has been replaced by a new 417 implementation, which provides better scalability and an 418 improved driver model. Most common drivers have been migrated to 419 the new TTY subsystem, while others have not. The following 420 drivers have not yet been ported to the new TTY layer: 421 422 PCI/ISA: 423 cy, digi, rc, rp, sio 424 425 USB: 426 ubser, ucycom 427 428 Line disciplines: 429 ng_h4, ng_tty, ppp, sl, snp 430 431 Adding these drivers to your kernel configuration file shall 432 cause compilation to fail. 433 43420080818: 435 ntpd has been upgraded to 4.2.4p5. 436 43720080801: 438 OpenSSH has been upgraded to 5.1p1. 439 440 For many years, FreeBSD's version of OpenSSH preferred DSA 441 over RSA for host and user authentication keys. With this 442 upgrade, we've switched to the vendor's default of RSA over 443 DSA. This may cause upgraded clients to warn about unknown 444 host keys even for previously known hosts. Users should 445 follow the usual procedure for verifying host keys before 446 accepting the RSA key. 447 448 This can be circumvented by setting the "HostKeyAlgorithms" 449 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 450 command line. 451 452 Please note that the sequence of keys offered for 453 authentication has been changed as well. You may want to 454 specify IdentityFile in a different order to revert this 455 behavior. 456 45720080713: 458 The sio(4) driver has been removed from the i386 and amd64 459 kernel configuration files. This means uart(4) is now the 460 default serial port driver on those platforms as well. 461 462 To prevent collisions with the sio(4) driver, the uart(4) driver 463 uses different names for its device nodes. This means the 464 onboard serial port will now most likely be called "ttyu0" 465 instead of "ttyd0". You may need to reconfigure applications to 466 use the new device names. 467 468 When using the serial port as a boot console, be sure to update 469 /boot/device.hints and /etc/ttys before booting the new kernel. 470 If you forget to do so, you can still manually specify the hints 471 at the loader prompt: 472 473 set hint.uart.0.at="isa" 474 set hint.uart.0.port="0x3F8" 475 set hint.uart.0.flags="0x10" 476 set hint.uart.0.irq="4" 477 boot -s 478 47920080609: 480 The gpt(8) utility has been removed. Use gpart(8) to partition 481 disks instead. 482 48320080603: 484 The version that Linuxulator emulates was changed from 2.4.2 485 to 2.6.16. If you experience any problems with Linux binaries 486 please try to set sysctl compat.linux.osrelease to 2.4.2 and 487 if it fixes the problem contact emulation mailing list. 488 48920080525: 490 ISDN4BSD (I4B) was removed from the src tree. You may need to 491 update a your kernel configuration and remove relevant entries. 492 49320080509: 494 I have checked in code to support multiple routing tables. 495 See the man pages setfib(1) and setfib(2). 496 This is a hopefully backwards compatible version, 497 but to make use of it you need to compile your kernel 498 with options ROUTETABLES=2 (or more up to 16). 499 50020080420: 501 The 802.11 wireless support was redone to enable multi-bss 502 operation on devices that are capable. The underlying device 503 is no longer used directly but instead wlanX devices are 504 cloned with ifconfig. This requires changes to rc.conf files. 505 For example, change: 506 ifconfig_ath0="WPA DHCP" 507 to 508 wlans_ath0=wlan0 509 ifconfig_wlan0="WPA DHCP" 510 see rc.conf(5) for more details. In addition, mergemaster of 511 /etc/rc.d is highly recommended. Simultaneous update of userland 512 and kernel wouldn't hurt either. 513 514 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 515 modules were merged into the base wlan module. All references 516 to these modules (e.g. in kernel config files) must be removed. 517 51820080408: 519 psm(4) has gained write(2) support in native operation level. 520 Arbitrary commands can be written to /dev/psm%d and status can 521 be read back from it. Therefore, an application is responsible 522 for status validation and error recovery. It is a no-op in 523 other operation levels. 524 52520080312: 526 Support for KSE threading has been removed from the kernel. To 527 run legacy applications linked against KSE libmap.conf may 528 be used. The following libmap.conf may be used to ensure 529 compatibility with any prior release: 530 531 libpthread.so.1 libthr.so.1 532 libpthread.so.2 libthr.so.2 533 libkse.so.3 libthr.so.3 534 53520080301: 536 The layout of struct vmspace has changed. This affects libkvm 537 and any executables that link against libkvm and use the 538 kvm_getprocs() function. In particular, but not exclusively, 539 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 540 The effects are minimal, but it's advisable to upgrade world 541 nonetheless. 542 54320080229: 544 The latest em driver no longer has support in it for the 545 82575 adapter, this is now moved to the igb driver. The 546 split was done to make new features that are incompatible 547 with older hardware easier to do. 548 54920080220: 550 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 551 likewise the kernel option is now GEOM_LINUX_LVM. 552 55320080211: 554 The default NFS mount mode has changed from UDP to TCP for 555 increased reliability. If you rely on (insecurely) NFS 556 mounting across a firewall you may need to update your 557 firewall rules. 558 55920080208: 560 Belatedly note the addition of m_collapse for compacting 561 mbuf chains. 562 56320080126: 564 The fts(3) structures have been changed to use adequate 565 integer types for their members and so to be able to cope 566 with huge file trees. The old fts(3) ABI is preserved 567 through symbol versioning in libc, so third-party binaries 568 using fts(3) should still work, although they will not take 569 advantage of the extended types. At the same time, some 570 third-party software might fail to build after this change 571 due to unportable assumptions made in its source code about 572 fts(3) structure members. Such software should be fixed 573 by its vendor or, in the worst case, in the ports tree. 574 FreeBSD_version 800015 marks this change for the unlikely 575 case that a portable fix is impossible. 576 57720080123: 578 To upgrade to -current after this date, you must be running 579 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 580 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 581 58220071128: 583 The ADAPTIVE_GIANT kernel option has been retired because its 584 functionality is the default now. 585 58620071118: 587 The AT keyboard emulation of sunkbd(4) has been turned on 588 by default. In order to make the special symbols of the Sun 589 keyboards driven by sunkbd(4) work under X these now have 590 to be configured the same way as Sun USB keyboards driven 591 by ukbd(4) (which also does AT keyboard emulation), f.e.: 592 593 Option "XkbLayout" "us" 594 Option "XkbRules" "xorg" 595 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 596 59720071024: 598 It has been decided that it is desirable to provide ABI 599 backwards compatibility to the FreeBSD 4/5/6 versions of the 600 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 601 broken with the introduction of PCI domain support (see the 602 20070930 entry). Unfortunately, this required the ABI of 603 PCIOCGETCONF to be broken again in order to be able to 604 provide backwards compatibility to the old version of that 605 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 606 again. As for prominent ports this affects neither pciutils 607 nor xorg-server this time, the hal port needs to be rebuilt 608 however. 609 61020071020: 611 The misnamed kthread_create() and friends have been renamed 612 to kproc_create() etc. Many of the callers already 613 used kproc_start().. 614 I will return kthread_create() and friends in a while 615 with implementations that actually create threads, not procs. 616 Renaming corresponds with version 800002. 617 61820071010: 619 RELENG_7 branched. 620 62120071009: 622 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 623 WITHOUT_LIBTHR are set. 624 62520070930: 626 The PCI code has been made aware of PCI domains. This means that 627 the location strings as used by pciconf(8) etc are now in the 628 following format: pci<domain>:<bus>:<device>[:<function>]. It 629 also means that consumers of <sys/pciio.h> potentially need to 630 be recompiled; this includes the hal and xorg-server ports. 631 63220070928: 633 The caching daemon (cached) was renamed to nscd. nscd.conf 634 configuration file should be used instead of cached.conf and 635 nscd_enable, nscd_pidfile and nscd_flags options should be used 636 instead of cached_enable, cached_pidfile and cached_flags in 637 rc.conf. 638 63920070921: 640 The getfacl(1) utility now prints owning user and group name 641 instead of owning uid and gid in the three line comment header. 642 This is the same behavior as getfacl(1) on Solaris and Linux. 643 64420070704: 645 The new IPsec code is now compiled in using the IPSEC option. The 646 IPSEC option now requires "device crypto" be defined in your kernel 647 configuration. The FAST_IPSEC kernel option is now deprecated. 648 64920070702: 650 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 651 note the changed syntax - keep state is now on by default. Also 652 note the fact that ftp-proxy(8) has been changed from bottom up and 653 has been moved from libexec to usr/sbin. Changes in the ALTQ 654 handling also affect users of IPFW's ALTQ capabilities. 655 65620070701: 657 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 658 only IPsec supported by FreeBSD. The new IPsec stack 659 supports both IPv4 and IPv6. The kernel option will change 660 after the code changes have settled in. For now the kernel 661 option IPSEC is deprecated and FAST_IPSEC is the only option, that 662 will change after some settling time. 663 66420070701: 665 The wicontrol(8) utility has been removed from the base system. wi(4) 666 cards should be configured using ifconfig(8), see the man page for more 667 information. 668 66920070612: 670 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 671 instead of the nve(4) driver. Please update your configuration 672 accordingly. 673 67420070612: 675 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 676 database if it is missing or older than the aliases file. If 677 desired, set the new rc.conf option sendmail_rebuild_aliases 678 to "YES" to restore that functionality. 679 68020070612: 681 The IPv4 multicast socket code has been considerably modified, and 682 moved to the file sys/netinet/in_mcast.c. Initial support for the 683 RFC 3678 Source-Specific Multicast Socket API has been added to 684 the IPv4 network stack. 685 686 Strict multicast and broadcast reception is now the default for 687 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 688 has now been removed. 689 690 The RFC 1724 hack for interface selection has been removed; the use 691 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 692 been added to replace it. Consumers such as routed will soon be 693 updated to reflect this. 694 695 These changes affect users who are running routed(8) or rdisc(8) 696 from the FreeBSD base system on point-to-point or unnumbered 697 interfaces. 698 69920070610: 700 The net80211 layer has changed significantly and all wireless 701 drivers that depend on it need to be recompiled. Further these 702 changes require that any program that interacts with the wireless 703 support in the kernel be recompiled; this includes: ifconfig, 704 wpa_supplicant, hostapd, and wlanstats. Users must also, for 705 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 706 if they use modules for wireless support. These modules implement 707 scanning support for station and ap modes, respectively. Failure 708 to load the appropriate module before marking a wireless interface 709 up will result in a message to the console and the device not 710 operating properly. 711 71220070610: 713 The pam_nologin(8) module ceases to provide an authentication 714 function and starts providing an account management function. 715 Consequent changes to /etc/pam.d should be brought in using 716 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 717 need manual editing as follows. Locate this line (or similar): 718 719 auth required pam_nologin.so no_warn 720 721 and change it according to this example: 722 723 account required pam_nologin.so no_warn 724 725 That is, the first word needs to be changed from "auth" to 726 "account". The new line can be moved to the account section 727 within the file for clarity. Not updating pam.conf(5) files 728 will result in nologin(5) ignored by the respective services. 729 73020070529: 731 The ether_ioctl() function has been synchronized with ioctl(2) 732 and ifnet.if_ioctl. Due to that, the size of one of its arguments 733 has changed on 64-bit architectures. All kernel modules using 734 ether_ioctl() need to be rebuilt on such architectures. 735 73620070516: 737 Improved INCLUDE_CONFIG_FILE support has been introduced to the 738 config(8) utility. In order to take advantage of this new 739 functionality, you are expected to recompile and install 740 src/usr.sbin/config. If you don't rebuild config(8), and your 741 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 742 build will be broken because of a missing "kernconfstring" 743 symbol. 744 74520070513: 746 Symbol versioning is enabled by default. To disable it, use 747 option WITHOUT_SYMVER. It is not advisable to attempt to 748 disable symbol versioning once it is enabled; your installworld 749 will break because a symbol version-less libc will get installed 750 before the install tools. As a result, the old install tools, 751 which previously had symbol dependencies to FBSD_1.0, will fail 752 because the freshly installed libc will not have them. 753 754 The default threading library (providing "libpthread") has been 755 changed to libthr. If you wish to have libkse as your default, 756 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 757 75820070423: 759 The ABI breakage in sendmail(8)'s libmilter has been repaired 760 so it is no longer necessary to recompile mail filters (aka, 761 milters). If you recompiled mail filters after the 20070408 762 note, it is not necessary to recompile them again. 763 76420070417: 765 The new trunk(4) driver has been renamed to lagg(4) as it better 766 reflects its purpose. ifconfig will need to be recompiled. 767 76820070408: 769 sendmail(8) has been updated to version 8.14.1. Mail filters 770 (aka, milters) compiled against the libmilter included in the 771 base operating system should be recompiled. 772 77320070302: 774 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 775 In order to use them one must agree to the respective LICENSE in 776 share/doc/legal and define legal.intel_<name>.license_ack=1 via 777 loader.conf(5) or kenv(1). Make sure to deinstall the now 778 deprecated modules from the respective firmware ports. 779 78020070228: 781 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 782 were removed from FreeBSD's libc. These originally came from INRIA 783 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 784 deprecated in previous releases. 785 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 786 replace it as a more portable (and re-entrant) API. 787 78820070224: 789 To support interrupt filtering a modification to the newbus API 790 has occurred, ABI was broken and __FreeBSD_version was bumped 791 to 700031. Please make sure that your kernel and modules are in 792 sync. For more info: 793 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 794 79520070224: 796 The IPv6 multicast forwarding code may now be loaded into GENERIC 797 kernels by loading the ip_mroute.ko module. This is built into the 798 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 799 set; see src.conf(5) for more information. 800 80120070214: 802 The output of netstat -r has changed. Without -n, we now only 803 print a "network name" without the prefix length if the network 804 address and mask exactly match a Class A/B/C network, and an entry 805 exists in the nsswitch "networks" map. 806 With -n, we print the full unabbreviated CIDR network prefix in 807 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 808 This change is in preparation for changes such as equal-cost 809 multipath, and to more generally assist operational deployment 810 of FreeBSD as a modern IPv4 router. 811 81220070210: 813 PIM has been turned on by default in the IPv4 multicast 814 routing code. The kernel option 'PIM' has now been removed. 815 PIM is now built by default if option 'MROUTING' is specified. 816 It may now be loaded into GENERIC kernels by loading the 817 ip_mroute.ko module. 818 81920070207: 820 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 821 has been removed. Its functionality may be achieved by explicitly 822 configuring gif(4) interfaces and using the 'phyint' keyword in 823 mrouted.conf. 824 XORP does not support source-routed IPv4 multicast tunnels nor the 825 integrated IPIP tunneling, therefore it is not affected by this 826 change. The __FreeBSD_version macro has been bumped to 700030. 827 82820061221: 829 Support for PCI Message Signalled Interrupts has been 830 re-enabled in the bge driver, only for those chips which are 831 believed to support it properly. If there are any problems, 832 MSI can be disabled completely by setting the 833 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 834 in the loader. 835 83620061214: 837 Support for PCI Message Signalled Interrupts has been 838 disabled again in the bge driver. Many revisions of the 839 hardware fail to support it properly. Support can be 840 re-enabled by removing the #define of BGE_DISABLE_MSI in 841 "src/sys/dev/bge/if_bge.c". 842 84320061214: 844 Support for PCI Message Signalled Interrupts has been added 845 to the bge driver. If there are any problems, MSI can be 846 disabled completely by setting the 'hw.pci.enable_msi' and 847 'hw.pci.enable_msix' tunables to 0 in the loader. 848 84920061205: 850 The removal of several facets of the experimental Threading 851 system from the kernel means that the proc and thread structures 852 have changed quite a bit. I suggest all kernel modules that might 853 reference these structures be recompiled.. Especially the 854 linux module. 855 85620061126: 857 Sound infrastructure has been updated with various fixes and 858 improvements. Most of the changes are pretty much transparent, 859 with exceptions of followings: 860 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 861 moved to their own dev sysctl nodes, for example: 862 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 863 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 864 own chardev in the form of "dsp%d.<function>%d", where <function> 865 is p = playback, r = record and v = virtual, respectively. Users 866 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 867 This does not affect those who are using "/dev/dsp". 868 86920061122: 870 geom(4)'s gmirror(8) class metadata structure has been 871 rev'd from v3 to v4. If you update across this point and 872 your metadata is converted for you, you will not be easily 873 able to downgrade since the /boot/kernel.old/geom_mirror.ko 874 kernel module will be unable to read the v4 metadata. You 875 can resolve this by doing from the loader(8) prompt: 876 877 set vfs.root.mountfrom="ufs:/dev/XXX" 878 879 where XXX is the root slice of one of the disks that composed 880 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 881 the array the same way you built it originally. 882 88320061122: 884 The following binaries have been disconnected from the build: 885 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 886 and mount_std. The functionality of these programs has been 887 moved into the mount program. For example, to mount a devfs 888 filesystem, instead of using mount_devfs, use: "mount -t devfs". 889 This does not affect entries in /etc/fstab, since entries in 890 /etc/fstab are always processed with "mount -t fstype". 891 89220061113: 893 Support for PCI Message Signalled Interrupts on i386 and amd64 894 has been added to the kernel and various drivers will soon be 895 updated to use MSI when it is available. If there are any problems, 896 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 897 and 'hw.pci.enable_msix' tunables to 0 in the loader. 898 89920061110: 900 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 901 The lockmgr object layout has been changed as a result of having 902 a lock_object embedded in it. As a consequence all file system 903 kernel modules must be re-compiled. The mutex profiling man page 904 has not yet been updated to reflect this change. 905 90620061026: 907 KSE in the kernel has now been made optional and turned on by 908 default. Use 'nooption KSE' in your kernel config to turn it 909 off. All kernel modules *must* be recompiled after this change. 910 There-after, modules from a KSE kernel should be compatible with 911 modules from a NOKSE kernel due to the temporary padding fields 912 added to 'struct proc'. 913 91420060929: 915 mrouted and its utilities have been removed from the base system. 916 91720060927: 918 Some ioctl(2) command codes have changed. Full backward ABI 919 compatibility is provided if the "options COMPAT_FREEBSD6" is 920 present in the kernel configuration file. Make sure to add 921 this option to your kernel config file, or recompile X.Org 922 and the rest of ports; otherwise they may refuse to work. 923 92420060924: 925 tcpslice has been removed from the base system. 926 92720060913: 928 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 929 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 930 systat needs to be rebuilt. 931 93220060903: 933 libpcap updated to v0.9.4 and tcpdump to v3.9.4 934 93520060816: 936 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 937 for IPFIREWALL_FORWARD is now as it was before when it was first 938 committed and for years after. The behaviour is now ON. 939 94020060725: 941 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 942 Now it can decrypt files created from different architectures. 943 Unfortunately, it is no longer able to decrypt a cipher text 944 generated with an older version on 64 bit architectures. 945 If you have such a file, you need old utility to decrypt it. 946 94720060709: 948 The interface version of the i4b kernel part has changed. So 949 after updating the kernel sources and compiling a new kernel, 950 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 951 be rebuilt, and vice versa. 952 95320060627: 954 The XBOX kernel now defaults to the nfe(4) driver instead of 955 the nve(4) driver. Please update your configuration 956 accordingly. 957 95820060514: 959 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 960 PCnet family of NICs has been removed. The new le(4) driver serves 961 as an equivalent but cross-platform replacement with the pcn(4) 962 driver still providing performance-optimized support for the subset 963 of AMD Am79C971 PCnet-FAST and greater chips as before. 964 96520060511: 966 The machdep.* sysctls and the adjkerntz utility have been 967 modified a bit. The new adjkerntz utility uses the new 968 sysctl names and sysctlbyname() calls, so it may be impossible 969 to run an old /sbin/adjkerntz utility in single-user mode 970 with a new kernel. Replace the `adjkerntz -i' step before 971 `make installworld' with: 972 973 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 974 975 and proceed as usual with the rest of the installworld-stage 976 steps. Otherwise, you risk installing binaries with their 977 timestamp set several hours in the future, especially if 978 you are running with local time set to GMT+X hours. 979 98020060412: 981 The ip6fw utility has been removed. The behavior provided by 982 ip6fw has been in ipfw2 for a good while and the rc.d scripts 983 have been updated to deal with it. There are some rules that 984 might not migrate cleanly. Use rc.firewall6 as a template to 985 rewrite rules. 986 98720060428: 988 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 989 attachments have been removed. Make sure to configure scc(4) 990 on sparc64. Note also that by default puc(4) will use uart(4) 991 and not sio(4) for serial ports because interrupt handling has 992 been optimized for multi-port serial cards and only uart(4) 993 implements the interface to support it. 994 99520060330: 996 The scc(4) driver replaces puc(4) for Serial Communications 997 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 998 Z8530. On sparc64, it is advised to add scc(4) to the kernel 999 configuration to make sure that the serial ports remain 1000 functional. 1001 100220060317: 1003 Most world/kernel related NO_* build options changed names. 1004 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1005 after FreeBSD ports) and should be set in /etc/src.conf 1006 (the src.conf(5) manpage is provided). Full backwards 1007 compatibility is maintained for the time being though it's 1008 highly recommended to start moving old options out of the 1009 system-wide /etc/make.conf file into the new /etc/src.conf 1010 while also properly renaming them. More conversions will 1011 likely follow. Posting to current@: 1012 1013 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1014 101520060305: 1016 The NETSMBCRYPTO kernel option has been retired because its 1017 functionality is always included in NETSMB and smbfs.ko now. 1018 101920060303: 1020 The TDFX_LINUX kernel option was retired and replaced by the 1021 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1022 kernel module. Loading it alone should suffice to get 3dfx support 1023 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1024 its dependencies. 1025 102620060204: 1027 The 'audit' group was added to support the new auditing functionality 1028 in the base system. Be sure to follow the directions for updating, 1029 including the requirement to run mergemaster -p. 1030 103120060201: 1032 The kernel ABI to file system modules was changed on i386. 1033 Please make sure that your kernel and modules are in sync. 1034 103520060118: 1036 This actually occured some time ago, but installing the kernel 1037 now also installs a bunch of symbol files for the kernel modules. 1038 This increases the size of /boot/kernel to about 67Mbytes. You 1039 will need twice this if you will eventually back this up to kernel.old 1040 on your next install. 1041 If you have a shortage of room in your root partition, you should add 1042 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1043 to your /etc/make.conf. 1044 104520060113: 1046 libc's malloc implementation has been replaced. This change has the 1047 potential to uncover application bugs that previously went unnoticed. 1048 See the malloc(3) manual page for more details. 1049 105020060112: 1051 The generic netgraph(4) cookie has been changed. If you upgrade 1052 kernel passing this point, you also need to upgrade userland 1053 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1054 105520060106: 1056 si(4)'s device files now contain the unit number. 1057 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1058 105920060106: 1060 The kernel ABI was mostly destroyed due to a change in the size 1061 of struct lock_object which is nested in other structures such 1062 as mutexes which are nested in all sorts of other structures. 1063 Make sure your kernel and modules are in sync. 1064 106520051231: 1066 The page coloring algorithm in the VM subsystem was converted 1067 from tuning with kernel options to autotuning. Please remove 1068 any PQ_* option except PQ_NOOPT from your kernel config. 1069 107020051211: 1071 The net80211-related tools in the tools/tools/ath directory 1072 have been moved to tools/tools/net80211 and renamed with a 1073 "wlan" prefix. Scripts that use them should be adjusted 1074 accordingly. 1075 107620051202: 1077 Scripts in the local_startup directories (as defined in 1078 /etc/defaults/rc.conf) that have the new rc.d semantics will 1079 now be run as part of the base system rcorder. If there are 1080 errors or problems with one of these local scripts, it could 1081 cause boot problems. If you encounter such problems, boot in 1082 single user mode, remove that script from the */rc.d directory. 1083 Please report the problem to the port's maintainer, and the 1084 freebsd-ports@freebsd.org mailing list. 1085 108620051129: 1087 The nodev mount option was deprecated in RELENG_6 (where it 1088 was a no-op), and is now unsupported. If you have nodev or dev listed 1089 in /etc/fstab, remove it, otherwise it will result in a mount error. 1090 109120051129: 1092 ABI between ipfw(4) and ipfw(8) has been changed. You need 1093 to rebuild ipfw(8) when rebuilding kernel. 1094 109520051108: 1096 rp(4)'s device files now contain the unit number. 1097 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1098 109920051029: 1100 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1101 Its /etc/rc.conf.d configuration file has been `ppp' from 1102 the beginning, and hence there is no need to touch it. 1103 110420051014: 1105 Now most modules get their build-time options from the kernel 1106 configuration file. A few modules still have fixed options 1107 due to their non-conformant implementation, but they will be 1108 corrected eventually. You may need to review the options of 1109 the modules in use, explicitly specify the non-default options 1110 in the kernel configuration file, and rebuild the kernel and 1111 modules afterwards. 1112 111320051001: 1114 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1115 to turn polling(4) on your interfaces. 1116 111720050927: 1118 The old bridge(4) implementation was retired. The new 1119 if_bridge(4) serves as a full functional replacement. 1120 112120050722: 1122 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1123 to conform to POSIX-2001. This change broke an ABI 1124 compatibility on 64 bit architecture. You have to recompile 1125 userland programs that use getaddrinfo(3) on 64 bit 1126 architecture. 1127 112820050711: 1129 RELENG_6 branched here. 1130 113120050629: 1132 The pccard_ifconfig rc.conf variable has been removed and a new 1133 variable, ifconfig_DEFAULT has been introduced. Unlike 1134 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1135 do not have ifconfig_ifn entries rather than just those in 1136 removable_interfaces. 1137 113820050616: 1139 Some previous versions of PAM have permitted the use of 1140 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1141 to third party PAM modules in /usr/local/lib. A change has been 1142 made to require the use of absolute paths in order to avoid 1143 ambiguity and dependence on library path configuration, which may 1144 affect existing configurations. 1145 114620050610: 1147 Major changes to network interface API. All drivers must be 1148 recompiled. Drivers not in the base system will need to be 1149 updated to the new APIs. 1150 115120050609: 1152 Changes were made to kinfo_proc in sys/user.h. Please recompile 1153 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1154 will not behave correctly. 1155 1156 The API and ABI for hwpmc(4) have changed with the addition 1157 of sampling support. Please recompile lib/libpmc(3) and 1158 usr.sbin/{pmcstat,pmccontrol}. 1159 116020050606: 1161 The OpenBSD dhclient was imported in place of the ISC dhclient 1162 and the network interface configuration scripts were updated 1163 accordingly. If you use DHCP to configure your interfaces, you 1164 must now run devd. Also, DNS updating was lost so you will need 1165 to find a workaround if you use this feature. 1166 1167 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1168 sure to run mergemaster -p (like you are supposed to do every time 1169 anyway). 1170 117120050605: 1172 if_bridge was added to the tree. This has changed struct ifnet. 1173 Please recompile userland and all network related modules. 1174 117520050603: 1176 The n_net of a struct netent was changed to an uint32_t, and 1177 1st argument of getnetbyaddr() was changed to an uint32_t, to 1178 conform to POSIX-2001. These changes broke an ABI 1179 compatibility on 64 bit architecture. With these changes, 1180 shlib major of libpcap was bumped. You have to recompile 1181 userland programs that use getnetbyaddr(3), getnetbyname(3), 1182 getnetent(3) and/or libpcap on 64 bit architecture. 1183 118420050528: 1185 Kernel parsing of extra options on '#!' first lines of shell 1186 scripts has changed. Lines with multiple options likely will 1187 fail after this date. For full details, please see 1188 http://people.freebsd.org/~gad/Updating-20050528.txt 1189 119020050503: 1191 The packet filter (pf) code has been updated to OpenBSD 3.7 1192 Please note the changed anchor syntax and the fact that 1193 authpf(8) now needs a mounted fdescfs(5) to function. 1194 119520050415: 1196 The NO_MIXED_MODE kernel option has been removed from the i386 1197 amd64 platforms as its use has been superceded by the new local 1198 APIC timer code. Any kernel config files containing this option 1199 should be updated. 1200 120120050227: 1202 The on-disk format of LC_CTYPE files was changed to be machine 1203 independent. Please make sure NOT to use NO_CLEAN buildworld 1204 when crossing this point. Crossing this point also requires 1205 recompile or reinstall of all locale depended packages. 1206 120720050225: 1208 The ifi_epoch member of struct if_data has been changed to 1209 contain the uptime at which the interface was created or the 1210 statistics zeroed rather then the wall clock time because 1211 wallclock time may go backwards. This should have no impact 1212 unless an snmp implementation is using this value (I know of 1213 none at this point.) 1214 121520050224: 1216 The acpi_perf and acpi_throttle drivers are now part of the 1217 acpi(4) main module. They are no longer built separately. 1218 121920050223: 1220 The layout of struct image_params has changed. You have to 1221 recompile all compatibility modules (linux, svr4, etc) for use 1222 with the new kernel. 1223 122420050223: 1225 The p4tcc driver has been merged into cpufreq(4). This makes 1226 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1227 compile in "device cpufreq" to restore this functionality. 1228 122920050220: 1230 The responsibility of recomputing the file system summary of 1231 a SoftUpdates-enabled dirty volume has been transferred to the 1232 background fsck. A rebuild of fsck(8) utility is recommended 1233 if you have updated the kernel. 1234 1235 To get the old behavior (recompute file system summary at mount 1236 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1237 mounting the new volume. 1238 123920050206: 1240 The cpufreq import is complete. As part of this, the sysctls for 1241 acpi(4) throttling have been removed. The power_profile script 1242 has been updated, so you can use performance/economy_cpu_freq in 1243 rc.conf(5) to set AC on/offline cpu frequencies. 1244 124520050206: 1246 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1247 requires recompiling libnetgraph and userland netgraph utilities. 1248 124920050114: 1250 Support for abbreviated forms of a number of ipfw options is 1251 now deprecated. Warnings are printed to stderr indicating the 1252 correct full form when a match occurs. Some abbreviations may 1253 be supported at a later date based on user feedback. To be 1254 considered for support, abbreviations must be in use prior to 1255 this commit and unlikely to be confused with current key words. 1256 125720041221: 1258 By a popular demand, a lot of NOFOO options were renamed 1259 to NO_FOO (see bsd.compat.mk for a full list). The old 1260 spellings are still supported, but will cause annoying 1261 warnings on stderr. Make sure you upgrade properly (see 1262 the COMMON ITEMS: section later in this file). 1263 126420041219: 1265 Auto-loading of ancillary wlan modules such as wlan_wep has 1266 been temporarily disabled; you need to statically configure 1267 the modules you need into your kernel or explicitly load them 1268 prior to use. Specifically, if you intend to use WEP encryption 1269 with an 802.11 device load/configure wlan_wep; if you want to 1270 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1271 and wlan_xauth as required. 1272 127320041213: 1274 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1275 (``enable lqr''), older versions would revert to LCP ECHO mode on 1276 negotiation failure. Now, ``enable echo'' is required for this 1277 behaviour. The ppp version number has been bumped to 3.4.2 to 1278 reflect the change. 1279 128020041201: 1281 The wlan support has been updated to split the crypto support 1282 into separate modules. For static WEP you must configure the 1283 wlan_wep module in your system or build and install the module 1284 in place where it can be loaded (the kernel will auto-load 1285 the module when a wep key is configured). 1286 128720041201: 1288 The ath driver has been updated to split the tx rate control 1289 algorithm into a separate module. You need to include either 1290 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1291 129220041116: 1293 Support for systems with an 80386 CPU has been removed. Please 1294 use FreeBSD 5.x or earlier on systems with an 80386. 1295 129620041110: 1297 We have had a hack which would mount the root filesystem 1298 R/W if the device were named 'md*'. As part of the vnode 1299 work I'm doing I have had to remove this hack. People 1300 building systems which use preloaded MD root filesystems 1301 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1302 their /etc/rc scripts. 1303 130420041104: 1305 FreeBSD 5.3 shipped here. 1306 130720041102: 1308 The size of struct tcpcb has changed again due to the removal 1309 of RFC1644 T/TCP. You have to recompile userland programs that 1310 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1311 131220041022: 1313 The size of struct tcpcb has changed. You have to recompile 1314 userland programs that read kmem for tcp sockets directly 1315 (netstat, sockstat, etc.) 1316 131720041016: 1318 RELENG_5 branched here. For older entries, please see updating 1319 in the RELENG_5 branch. 1320 1321COMMON ITEMS: 1322 1323 General Notes 1324 ------------- 1325 Avoid using make -j when upgrading. From time to time in the 1326 past there have been problems using -j with buildworld and/or 1327 installworld. This is especially true when upgrading between 1328 "distant" versions (eg one that cross a major release boundary 1329 or several minor releases, or when several months have passed 1330 on the -current branch). 1331 1332 Sometimes, obscure build problems are the result of environment 1333 poisoning. This can happen because the make utility reads its 1334 environment when searching for values for global variables. 1335 To run your build attempts in an "environmental clean room", 1336 prefix all make commands with 'env -i '. See the env(1) manual 1337 page for more details. 1338 1339 When upgrading from one major version to another it is generally 1340 best to upgrade to the latest code in the currently installed branch 1341 first, then do an upgrade to the new branch. This is the best-tested 1342 upgrade path, and has the highest probability of being successful. 1343 Please try this approach before reporting problems with a major 1344 version upgrade. 1345 1346 To build a kernel 1347 ----------------- 1348 If you are updating from a prior version of FreeBSD (even one just 1349 a few days old), you should follow this procedure. It is the most 1350 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1351 1352 make kernel-toolchain 1353 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1354 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1355 1356 To test a kernel once 1357 --------------------- 1358 If you just want to boot a kernel once (because you are not sure 1359 if it works, or if you want to boot a known bad kernel to provide 1360 debugging information) run 1361 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1362 nextboot -k testkernel 1363 1364 To just build a kernel when you know that it won't mess you up 1365 -------------------------------------------------------------- 1366 This assumes you are already running a 5.X system. Replace 1367 ${arch} with the architecture of your machine (e.g. "i386", 1368 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1369 1370 cd src/sys/${arch}/conf 1371 config KERNEL_NAME_HERE 1372 cd ../compile/KERNEL_NAME_HERE 1373 make depend 1374 make 1375 make install 1376 1377 If this fails, go to the "To build a kernel" section. 1378 1379 To rebuild everything and install it on the current system. 1380 ----------------------------------------------------------- 1381 # Note: sometimes if you are running current you gotta do more than 1382 # is listed here if you are upgrading from a really old current. 1383 1384 <make sure you have good level 0 dumps> 1385 make buildworld 1386 make kernel KERNCONF=YOUR_KERNEL_HERE 1387 [1] 1388 <reboot in single user> [3] 1389 mergemaster -p [5] 1390 make installworld 1391 make delete-old 1392 mergemaster [4] 1393 <reboot> 1394 1395 1396 To cross-install current onto a separate partition 1397 -------------------------------------------------- 1398 # In this approach we use a separate partition to hold 1399 # current's root, 'usr', and 'var' directories. A partition 1400 # holding "/", "/usr" and "/var" should be about 2GB in 1401 # size. 1402 1403 <make sure you have good level 0 dumps> 1404 <boot into -stable> 1405 make buildworld 1406 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1407 <maybe newfs current's root partition> 1408 <mount current's root partition on directory ${CURRENT_ROOT}> 1409 make installworld DESTDIR=${CURRENT_ROOT} 1410 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1411 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1412 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1413 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1414 <reboot into current> 1415 <do a "native" rebuild/install as described in the previous section> 1416 <maybe install compatibility libraries from ports/misc/compat*> 1417 <reboot> 1418 1419 1420 To upgrade in-place from 5.x-stable to current 1421 ---------------------------------------------- 1422 <make sure you have good level 0 dumps> 1423 make buildworld [9] 1424 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1425 [1] 1426 <reboot in single user> [3] 1427 mergemaster -p [5] 1428 make installworld 1429 make delete-old 1430 mergemaster -i [4] 1431 <reboot> 1432 1433 Make sure that you've read the UPDATING file to understand the 1434 tweaks to various things you need. At this point in the life 1435 cycle of current, things change often and you are on your own 1436 to cope. The defaults can also change, so please read ALL of 1437 the UPDATING entries. 1438 1439 Also, if you are tracking -current, you must be subscribed to 1440 freebsd-current@freebsd.org. Make sure that before you update 1441 your sources that you have read and understood all the recent 1442 messages there. If in doubt, please track -stable which has 1443 much fewer pitfalls. 1444 1445 [1] If you have third party modules, such as vmware, you 1446 should disable them at this point so they don't crash your 1447 system on reboot. 1448 1449 [3] From the bootblocks, boot -s, and then do 1450 fsck -p 1451 mount -u / 1452 mount -a 1453 cd src 1454 adjkerntz -i # if CMOS is wall time 1455 Also, when doing a major release upgrade, it is required that 1456 you boot into single user mode to do the installworld. 1457 1458 [4] Note: This step is non-optional. Failure to do this step 1459 can result in a significant reduction in the functionality of the 1460 system. Attempting to do it by hand is not recommended and those 1461 that pursue this avenue should read this file carefully, as well 1462 as the archives of freebsd-current and freebsd-hackers mailing lists 1463 for potential gotchas. 1464 1465 [5] Usually this step is a noop. However, from time to time 1466 you may need to do this if you get unknown user in the following 1467 step. It never hurts to do it all the time. You may need to 1468 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1469 install) after the buildworld before this step if you last updated 1470 from current before 20020224 or from -stable before 20020408. 1471 1472 [8] In order to have a kernel that can run the 4.x binaries 1473 needed to do an installworld, you must include the COMPAT_FREEBSD4 1474 option in your kernel. Failure to do so may leave you with a system 1475 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1476 is required to run the 5.x binaries on more recent kernels. 1477 1478 Make sure that you merge any new devices from GENERIC since the 1479 last time you updated your kernel config file. 1480 1481 [9] When checking out sources, you must include the -P flag to have 1482 cvs prune empty directories. 1483 1484 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1485 "?=" instead of the "=" assignment operator, so that buildworld can 1486 override the CPUTYPE if it needs to. 1487 1488 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1489 not on the command line, or in /etc/make.conf. buildworld will 1490 warn if it is improperly defined. 1491FORMAT: 1492 1493This file contains a list, in reverse chronological order, of major 1494breakages in tracking -current. Not all things will be listed here, 1495and it only starts on October 16, 2004. Updating files can found in 1496previous releases if your system is older than this. 1497 1498Copyright information: 1499 1500Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1501 1502Redistribution, publication, translation and use, with or without 1503modification, in full or in part, in any form or format of this 1504document are permitted without further permission from the author. 1505 1506THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1507IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1508WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1509DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1510INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1511(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1512SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1513HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1514STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1515IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1516POSSIBILITY OF SUCH DAMAGE. 1517 1518If you find this document useful, and you want to, you may buy the 1519author a beer. 1520 1521Contact Warner Losh if you have any questions about your use of 1522this document. 1523 1524$FreeBSD: head/UPDATING 192470 2009-05-20 20:05:56Z sam $ 1525